At first, according with the fundamental theory of complementary variational method, the complementary fem is constructed by the introduction of t-q to satisfy the equation of secondly 首先,根据互补变分原理,构造了基于t?变量的互补有限元法,从而满足了应用互补有限元法计算电磁参数时,必须保证基本关系式h=j恒成立这一前提。